CN107603056B - Hard PVC material composition and preparation method thereof, purposes - Google Patents
Hard PVC material composition and preparation method thereof, purposes Download PDFInfo
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- CN107603056B CN107603056B CN201710718060.0A CN201710718060A CN107603056B CN 107603056 B CN107603056 B CN 107603056B CN 201710718060 A CN201710718060 A CN 201710718060A CN 107603056 B CN107603056 B CN 107603056B
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Abstract
A kind of hard PVC material composition of present invention offer and preparation method thereof, purposes, are prepared by each raw material including following mass parts：PVC100 parts, 0.5 20 parts of stabilizer, 0 10 parts of plasticizer, 0.5 10 parts of processing aid, 0.5 10 parts of modification agent, 0.1 5 parts of lubricant, 1 30 parts of filler, 05 parts of colorant；Wherein, in the PVC, the ratio between PVC virgin materials and the weight fraction of PVC reclaimed materials are (7 10)：1.Compared with prior art, the present invention has following advantageous effect：The present invention is optimized by the way that reclaimed materials is added in PVC, and to the ratio of virgin material and reclaimed materials, not only reduces cost, it is often more important that realizes the promotion of hardness.
Description
Technical field
The present invention relates to materials processing technology fields, more particularly to a kind of hard PVC material composition and its preparation side
Method, purposes.
Background technology
Currently, cooling tower is widely used in air conditioner cooling system, freezing series, electric furnace, injection molding, process hides, power generation, steamer
The fields such as machine, aluminium section bar processing, air compressor machine, industrial water cooling.Its effect is will to carry under one's arms the cooling water of waste heat in Ta Nei and air
Heat exchange is carried out, so that waste heat is transferred to air and spills into air.And in cooling tower water cooling procedure, mainly in filler into
Row, the cooling effect of cooling tower are heavily dependent on the heat exchange performance of filler.And common metal is as cooling tower filler,
But metal packing has the shortcomings that be easy to make moist get rusty, is of high cost, is heavy, installation inconvenience, being easy fouling, cleaning inconvenience.
PVC fillers are environmentally protective, low-carbon, become development trend, special high temperature resistant cold water process PVC material, which has become, to be replaced
The optimal selection of substituting metal material, is paid close attention to by various countries.Compared to metal packing, PVC fillers thermal performance is good, and gas-flow resistance is small,
Rigidity it is good, it is heat-resist, resist cold, weather-resistance flame-retardant is good, with it is cheap, be easy be molded, it is light, easy for installation, anti-
The advantages that burn into is reusable after cleaning, good cooling results, hydrophilicity is strong.Cooling tower filler is with PVC hard materials with it
Excellent comprehensive performance, lower price, it is light the features such as, the effect in national economy and life is more and more important, has
Vast potential for future development.
But current hard PVC material cost is higher, hardness also has much room for improvement.
Invention content
Based on this, it is necessary to which, for the problems such as hard PVC material is of high cost, hardness is insufficient, primary and foremost purpose of the invention is
A kind of hard PVC material at low cost, hardness is strong is provided.
The purpose of the present invention is what is be achieved through the following technical solutions：
It is an object of the present invention to provide a kind of hard PVC material compositions, by each raw material including following mass parts
It is prepared：
Wherein, in the PVC, the ratio between PVC virgin materials and the weight fraction of PVC reclaimed materials are (7-10)：1.
In wherein some embodiments, the hard PVC material composition is prepared by each raw material including following mass parts
It forms：
Wherein, in the PVC, the ratio between PVC virgin materials and the weight fraction of PVC reclaimed materials are 9：1.
In wherein some embodiments, the PVC be SG-5, S-65, HG-800, DG-800, TL-800, TL-1000,
At least one of S-1007, S-1008.
In wherein some embodiments, the stabilizer is that organic tin stabilizer, calcium-zinc composite stabilizing agent, magnalium zinc are compound
At least one of stabilizer.
In wherein some embodiments, the plasticizer is epoxidized soybean oil, TOTM (trioctyl trimellitate (TOTM)), DOTP
At least one of (dioctyl terephthalate) plasticizer.
In wherein some embodiments, the processing aid is methyl methacrylate-butyl acrylate copolymer, propylene
At least one of acid resin, methacrylic processing aid.
In wherein some embodiments, the modification agent is at least one of MBS, ACR, ABS.
In wherein some embodiments, the lubricant be calcium stearate, zinc stearate, N, N'- ethylene bis stearamides,
At least one of stearic acid, butyl stearate, polynary carboxylic ester.
In wherein some embodiments, the filler is at least one of titanium dioxide, talcum powder, calcium carbonate.
It is a further object to provide a kind of preparation methods of hard PVC material composition, include the following steps：
The PVC, stabilizer, processing aid, modification agent, lubricant, filler, colorant are mixed, mixed material is obtained；
The mixed material squeezes out after clipped preplasticizing in screw extruder, extruded stock through being plasticized in open mill, then
Calender compression molding, stretching-machine extraction, cooling and shaping, winding are to get the hard PVC material composition.
In wherein some embodiments, for the equipment that the mixing uses for thermal agitation machine, the time of the mixing is 5-
10min。
In wherein some embodiments, the screw extruder is star row screw extruder；The temperature of the screw extruder
Degree is 150-180 DEG C.
In wherein some embodiments, the temperature being plasticized in the open mill is 130-160 DEG C.
It is a further object of the present invention to provide a kind of use of hard PVC material composition in preparing cooling tower filler
On the way.
Another object of the present invention is to provide a kind of cooling tower filler, contains above-mentioned hard PVC material composition.
Compared with prior art, the invention has the advantages that：
The present invention is optimized by the way that reclaimed materials is added in PVC, and to the ratio of virgin material and reclaimed materials, is not only reduced
Cost, it is often more important that realize the promotion of hardness.
Further, the present invention also optimizes the type of PVC, finally realizes product heat resistance, cold tolerance
Take into account.
Specific implementation mode
Hard PVC material composition of the present invention and preparation method thereof, purposes are made into one below in conjunction with specific embodiment
Step detailed description.
The preparation method of hard PVC material composition provided in an embodiment of the present invention, includes the following steps：
The PVC, stabilizer, processing aid, modification agent, lubricant, filler, colorant are mixed, mixed material is obtained；
The mixed material squeezes out after clipped preplasticizing in screw extruder, extruded stock through being plasticized in open mill, then
Calender compression molding, stretching-machine extraction, cooling and shaping, winding are to get the hard PVC material composition.
In above-mentioned preparation method:The equipment used is mixed as thermal agitation machine, the mixed time is 5-10min；Screw Extrusion
Machine is star row screw extruder, and the temperature of screw extruder is 150-180 DEG C；The temperature being plasticized in open mill is 130-160 DEG C.
In the preparation method, used equipment and parameter are formula property screening of the inventor based on hard PVC material composition
.
Hard PVC material composition provided in an embodiment of the present invention can be used for preparing cooling tower filler, and gained cooling tower is filled out
Material can will need cooling hot water splatter at water droplet and form moisture film, when contact area and contact to increase water and air
Between, that is, increase the intensity of heat exchange of water and air.During preparing cooling tower filler, hard PVC material can be combined
Object is through hot press molding or plastics sucking moulding is different shape, and such as S waveforms, oblique stagger mode, step be trapezoidal, hexagon cellular shape, bias
Waveform etc., to have the function that reinforce heat dissipation.
PVC reclaimed materials described in the embodiment of the present invention such as production scene leftover pieces, quality abnormal reject material, let out Chinese herbaceous peony after
Generate abnormal material etc..
Embodiment 1-7
Embodiment 1 provides a kind of hard PVC material composition and preparation method thereof, purposes, specifically：
Various raw materials are weighed according to mass fraction shown in table 1；
It will be in PVC, heat stabilizer, plasticizer, processing aid, modification agent, lubricant, filler and colorant in addition thermal agitation machine
It is sufficiently mixed 5-10min, obtains mixed material；
The mixed material squeezes out, in temperature 130- through 150-180 DEG C of star row screw extruder of temperature after shearing preplasticizing
160 DEG C of open mills are further plasticized, then calender compression molding, and stretching-machine extraction, cooling and shaping, winding are to get to PVC hard
Material compositions.
PVC hard materials composition provided in this embodiment can be used for preparing cooling tower filler.
Embodiment 2-7 is respectively supplied to a kind of hard PVC material composition and preparation method thereof, purposes, the preparation of use
Method and purposes are same as Example 1, and variation place is only that the hard PVC material composition material formula of use is different, tool
Body refers to table 1.
Table 1
Embodiment 8-9
Embodiment 8, embodiment 9 be embodiment 1 change case, variation place is only that the original of hard PVC material composition
Material formula is specifically shown in shown in the following table 2.
Table 2
Comparative example 1-4
Comparative example 1-4 is the comparative example of embodiment 8, and comparison place is only that formula is different, referring specifically to table 3.
Performance test
The performance of above-mentioned each example is tested, test index and test method include：
Gloss value is tested：The Grossmeters produced using Ke Shijia photoelectric instruments research institute, test angle are 60 °, type
Number it is WGG60-E4, tests PVC hard material compositions, method meets ASTM-D523-89 specifications.Gloss value lower generation
The molding effect and three-dimensional sense of table PVC hard material compositions are better.
Heat shrink is tested：The baking oven produced using Japanese TOYOSEIKI companies, model STD-45 test PVC hard
Material compositions, method meet GB/T 12027-2004 specifications.Heat shrink value is lower to represent PVC hard material compositions
It is more preferable to change smaller and molding effect when hot briquetting.
Resistance to cold is tested：The freezing tester produced using TaiWan, China Tai Qi companies, model TL-60, test
PVC hard material compositions, method meet ASTM D1790-2014.Resistance to cold score is higher to represent PVC hard materials
The low temperature resistant intensity of composition is better.
Impact strength is tested：Using the homemade impact resistance testing machine of Hong Xin companies, model VF-40DCA-10, test
PVC hard material compositions, method meet the inspection criterion of macro letter impact strength.Impact resistance score is higher to represent PVC hard
It is better that intensity is patted in the impact resistance of material compositions.
Hardness number is tested：The hardometer produced using Japanese TELOCK companies, model GS-702N test PVC hard materials
Feed composition, method meet ASTM D 2240D, and hardness number is bigger to illustrate that PVC hard material composition hardness is higher.
Heat distortion temperature is tested：The thermal deformation dimension card temperature analyzer produced using Japanese YASUDA SEIKI companies, type
Number it is 148-HDPC-3, tests PVC hard material compositions, method meets ASTM D648-2016 specifications.Heat distortion temperature
It is higher that represent PVC hard material composition heat resistances better.
Vicat temperature is tested：The thermal deformation dimension card temperature analyzer produced with Japanese YASUDA SEIKI companies, model
148-HDPC-3, tests PVC hard material compositions, and method meets ASTM D1525-2009.The higher representative of vicat temperature
Dimensional stability is better when PVC hard material compositions are heated and heat-resistant deforming ability is better.
Test result is shown in Table 4,5.
The performance test data of 4 embodiment product of table
The performance test data of 5 comparative example product of table
According to above-described embodiment and detection data：
The effect of the present invention can be achieved in product formula provided in an embodiment of the present invention in the following raw material and content range
Fruit：PVC100 parts, 0.5-20 parts of stabilizer, 0-10 parts of plasticizer, 0.5-10 parts of processing aid, 0.5-10 parts of modification agent, lubrication
0.1-5 parts of agent, 1-30 parts of filler, 0-5 parts of colorant；Wherein, in the PVC, the weight fraction of PVC virgin materials and PVC reclaimed materials it
Than for (7-10)：1.
Further, by comparing embodiment 1-7, embodiment 8-9 it is found that the formulation product that embodiment 1-7 is provided is being imitated
It is whole on fruit to be better than embodiment 8-9, illustrate that there are preferred embodiments for composite formula of the invention.
By the comparison of embodiment 8 and comparative example 1-4 it is found that the effect of embodiment 8 is integrally better than comparative example 1-4, this says
It is bright that for present composition formula, the proportioning between the type and its component of PVC is vital for the present invention, if
Have exceeded the restriction of the application, it will significantly affect the realization of effect of the present invention.
For on the whole, the technical program product thermal performance is good, and rigidity is good, heat-resist, resists cold, with price
It is cheap, be easy molding, light, easy for installation, anticorrosion, reusable, good cooling results after cleaning, hydrophilicity is by force etc. excellent
Point.When being used to prepare cooling tower filler, with its excellent comprehensive performance, lower price, it is light the features such as, in national economy
It is more and more important with the effect in life, there is vast potential for future development.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of hard PVC material composition, which is characterized in that be prepared by each raw material including following mass parts：
Wherein, in the PVC, the ratio between PVC virgin materials and the weight fraction of PVC reclaimed materials are (7-10)：1；
The PVC is at least one in SG-5, S-65, HG-800, DG-800, TL-800, TL-1000, S-1007, S-1008
Kind；The processing aid is at least one of acrylic resin, methacrylic processing aid.
2. hard PVC material composition according to claim 1, which is characterized in that by each original including following mass parts
Material is prepared：
Wherein, in the PVC, the ratio between PVC virgin materials and the weight fraction of PVC reclaimed materials are 9：1.
3. hard PVC material composition according to claim 1 or 2, which is characterized in that the stabilizer is that organotin is steady
Determine at least one of agent, calcium-zinc composite stabilizing agent, magnesium-aluminum-zinc composite stabilizer.
4. hard PVC material composition according to claim 1 or 2, which is characterized in that the plasticizer is epoxy soybean
At least one of oil, TOTM, DOTP plasticizer.
5. hard PVC material composition according to claim 1 or 2, which is characterized in that the modification agent be MBS, ACR,
At least one of ABS；The lubricant is calcium stearate, zinc stearate, N, N'- ethylene bis stearamides, stearic acid, tristearin
At least one of acid butyl ester, polynary carboxylic ester；The filler is at least one of titanium dioxide, talcum powder, calcium carbonate.
6. a kind of preparation method according to any one of claim 1 to the 5 hard PVC material composition, which is characterized in that packet
Include following steps：
The PVC, stabilizer, processing aid, modification agent, lubricant, filler, colorant are mixed, mixed material is obtained；
The mixed material squeezes out after clipped preplasticizing in screw extruder, and extruded stock in open mill through being plasticized, then rolls
Machine compression molding, stretching-machine extraction, cooling and shaping, winding are to get the hard PVC material composition.
7. the preparation method of hard PVC material composition according to claim 6, which is characterized in that the mixing uses
Equipment be thermal agitation machine, time of the mixing is 5-10min；The screw extruder is star screw extruder, described
The temperature of screw extruder is 150-180 DEG C；The temperature being plasticized in the open mill is 130-160 DEG C.
8. a kind of use according to any one of claim 1 to the 5 hard PVC material composition in preparing cooling tower filler
On the way.
9. a kind of cooling tower filler, which is characterized in that combined containing hard PVC material described in any one of claim 1 to 5
Object.
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| CN111732796A (en) * | 2020-06-03 | 2020-10-02 | 无锡宏义高分子材料科技有限公司 | PVC (polyvinyl chloride) filling material with high flexural modulus and low cost and preparation method thereof |
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Effective date of registration: 20191129 Address after: 214000 No.28, Xinzhou Road, national high tech Industrial Development Zone, Wuxi City, Jiangsu Province Patentee after: Wuxi Hongyi polymer material technology Co., Ltd Address before: 510530, No. 1, Po pan Road, Guangzhou, Guangdong, Luogang District Patentee before: GUANGZHOU HAN RIGID INDUSTRIAL CO., LTD. |
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